Visit the Boulder County Ballot Measures website for information about 2025 ballot measures.

Boulder County is looking for feedback from people who use assistive technology to navigate the county website. Email JSimmons@bouldercounty.gov before Oct. 22.

Parks & Open Space

Hikes for Seniors: A Hop Around the Ponds

Walden Ponds Wildlife Habitat 3893 N. 75th St., Boulder, CO

Fun on the Farm: Piggies in the Puddle

Agricultural Heritage Center 8348 Ute Hwy, Longmont, CO
Nederland Mining Museum Open 11am-5pm

Nederland Mining Museum Open 11am-5pm

Nederland Mining Museum 200 N. Bridge Street, Nederland, CO

Birding Big Sit

Walden Ponds Wildlife Habitat 3893 N. 75th St., Boulder, CO
Nederland Mining Museum Open 11am-5pm

Nederland Mining Museum Open 11am-5pm

Nederland Mining Museum 200 N. Bridge Street, Nederland, CO
Nederland Mining Museum Open 11am-5pm

Nederland Mining Museum Open 11am-5pm

Nederland Mining Museum 200 N. Bridge Street, Nederland, CO

Art in the Parks: Artistic Styles

Walker Ranch Meyers Gulch Trailhead 7325 Flagstaff Rd., Boulder, CO

Parks & Open Space Advisory Committee (POSAC)

Commissioners' Hearing Room Downtown County Courthouse, 1325 Pearl Street, 3rd Floor, Boulder, CO, United States

Hammering On the Farm

Agricultural Heritage Center 8348 Ute Hwy, Longmont, CO
Nederland Mining Museum Open 11am-5pm

Nederland Mining Museum Open 11am-5pm

Nederland Mining Museum 200 N. Bridge Street, Nederland, CO

Birding Boulder County Through the Seasons

West Age Well Center for Older Adults 909 Arapahoe Rd., Boulder, CO, United States

Astronomy: A Planetary Lineup

Ron Stewart Preserve at Rabbit Mountain 14950 N. 55th St., Longmont, CO